公开(公告)号：US20180241086A1

公开(公告)日：2018-08-23

申请号：US15749807

申请日：2016-06-03

Applicant: SOLVAY SA

Inventor： Samuel David ARTHUR ,  Stephen E. BURKHARDT ,  Kostantinos KOURTAKIS ,  Brian LEVY-POLIS ,  Jun J. LIU ,  Mark Gerrit ROELOFS

IPC: H01M10/0568 ,  H01M10/0569 ,  H01M10/0567 ,  H01M4/131

CPC classification number: H01M10/0568 ,  H01M4/131 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2004/028 ,  H01M2300/0034

Abstract: Described herein are: An electrolyte composition comprising a) a fluorinated solvent for an electrolyte salt; b) an oxalate salt represented by the Formula LiPF(6-2q)(Ox)q, wherein Ox is an oxalate moiety and q is 1, 2 or 3; and c) optionally, at least one electrolyte salt. In some embodiments, the electrolyte composition comprises a mole ratio of Ox/P in the range of from 0.001 to 5. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.

公开(公告)号：US20200321657A1

公开(公告)日：2020-10-08

申请号：US16305438

申请日：2016-06-03

Applicant: SOLVAY SA

Inventor： Stephen E. BURKHARDT ,  Kostantinos KOURTAKIS ,  Mark Gerrit ROELOFS

IPC: H01M10/0569 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M4/525 ,  H01M4/505

Abstract: Disclosed herein are electrolyte compositions comprising a fluorinated solvent, a fluorinated sulfone, at least one component selected from a borate salt, and/or an oxalate salt, and/or a fluorinated cyclic carbonate, and at least one electrolyte salt. The fluorinated solvent may be a fluorinated acyclic carboxylic acid ester, a fluorinated acyclic carbonate, a fluorinated acyclic ether, or combinations thereof. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.